The =Tulip Tree= (_Liriodendron tulipifera_).—Excellent examples are not wanting of how valuable a tree this is for towns and streets. It seems to have a wonderful recuperative power, for, scorched, blackened, and encrusted as may appear the falling foliage, yet in the following spring it again puts forth a garb of the freshest and richest greenery. The remarkable four-lobed, truncate leaves render the tree almost without an equal for ornamental planting, while its undoubted smoke-resisting qualities place it high in the rank among town trees. The =Indian Bean= (_Catalpa bignonioides_).—For various reasons this fast-growing tree is to be recommended for planting in smoky localities. It grows with great vigour in many smoky centres of industry, is a tree of handsome proportions, and, when fully established, flowers freely. A valuable trait in the character of the Indian bean is that should accident befall it, and the stem get injured, numerous strong suckers are produced, which, as they grow with great rapidity, soon take the place of the original. The =Common Mulberry= (_Morus nigra_) and the =white-fruited Mulberry= (_M. alba_) may be seen growing satisfactorily in several of the old gardens and nurseries of the metropolis, where they are now buried alive, as might be said, in stones and mortar. That they are excellent town trees will be admitted by every one who sees the fine specimens in Liverpool and Manchester. The =Honey Locust= (_Gleditschia triacanthos_) is a very suitable subject for planting in smoky localities. In many of the worst smoke-infested parts of London and Manchester are seen goodly specimens of this handsome tree—not poor, miserable trees, but, from their great size, wealth of foliage, and general appearance, betokening perfect health amid their rather adverse surroundings. The =False Acacia= (_Robinia Pseudo-acacia_).—Almost by the hundred can the false acacia be seen in London and many other English towns, thus proving that it is one of the most valuable trees that we possess for withstanding the injurious effects of an impure atmosphere. What renders this acacia of greatest value as a town tree is that it retains its rich verdure till well on in autumn. The varieties known as =Decaisneana=, =inermis=, =microphylla=, =macrophylla=, =sophoræfolia=, and the upright-habited are most to be desired. [Illustration: THE BEAM TREE IN LONDON] The =White Beam Tree= (_Pyrus Aria_).—In many of the confined spaces in Glasgow the white beam tree grows luxuriously, and produces annually great quantities of its brightly-tinted berries.